Hello All, we have Cisco ASA 5545- X NGFW with device license VPN premium. And failover license value is Active/Active. I have configured successfully active/standby firewall also replicated the configuration. but the secondary firewall state is "Failed" instead of Standby Ready. Could anyone please help me in this regards. Would be more grateful. Regards, Azeem
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Yes. the optic on 6500 is X2 10 Gb LR. I switched the fiber strands didn't worked. the head scratching thing is on 6500 the interface status is "Connected" but on the 4500 it is not. I configured both the ports as trunk and changed their native VLAN, by doing that I was able to see the NATIVE VLAN MISMATCH error message. that means the switches can read the information but why the interface status is not connected have no idea. also I tried to ping point to point IP but no reply. anything I can do to fix this. Thanks.
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Hi, I am trying to connect 4500 x to 6509 e using 10 Gb LR but it is not connecting. on 4500 ports status is not connected but on 6509 port status shows connected. I gave a loop also on 4500 it works fine. Then, I connected 2960x switch using same 10 Gb LR sfp to 6509. worked fine. also I connected 2960x to 4500x on 10 Gb worked fine as well. but why unearth it is not working from 4500 to 6509 any suggestions regards, Azeem
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Hi Bekzod, have you disabled insertion of option-82 if not then type in your switch this command:- no ip dhcp snooping information option Can you post your configuration you have done for DHCP snooping.
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Hi, I have configured ARP inspection along with DHCP snooping. All the computers are getting the IPs properly and building the snooping database. but once I disable and enable the network adapter, it starts discovering for IP address, in that process ARP inspection shows log in the switch says invalid ARP (Req) on the port with MAC address of the system and Microsoft Automatic IP even after IP address and the port number entry in the snooping database . My cisco Model is 3560 and IOS ver is 15.0 (2) SE6 Any suggestions what is the issue. Regards, Azeem
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My access point version is cisco AIR-AP1252G-E-K9 and is 802.11 g/n i am sitting very close to the access point but then also i can reach upto 22 Mbps only. I check on my andriod phone the same result. is there any configuration i have missed?? Thank You, Azeem
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Hi, I would like to know, how much bandwidth a PIX firewall can handle. Actually one of our branch office is still having PIX firewall and we have a huge replication going on from head office to this branch. for temporary purpose we have upgraded the bandwidth to 50 Mbps, but I have noticed that the replication is utilizing only 40 Mbps. Thanks, Azeem
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Hi, I dont know what kind of problem is this but it is very wierd and brain hammering. I have a 1 Access point (cisco 1200) connected to our core switch 6509E and 2 more are connected to access switch 3560. sometimes there are many drops when i ping the access point connected to my core switch and i face the same drops for the other access points as they are not even connected to core switch. The same time i checked the cpu utilization it is very low and i can continously ping core switch as well as the access switch without any drops. i checked the interface on the core switch where this access point is connected there are lots of ouput drops and keeps on increasing. i have even changed 2-3 switch ports to fix this issue but the result is same. After some times it becomes normal automatically. i checked the switch logs as well there is nothing to crack the root cause. and when it becomes normal all the access points pings continously. what is this problem?? is there anyone who can help me?? Regards, Azeem
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Hi, I came across a scenario where i can see a huge ping response on a single switch port. I have connected a laptop to that port and simply pinging the getway, the ping is high and low continously. it is not stable. i change the cable i check on different port on the same switch it is working fine. but on this port why it is responding like this have no idea. i reset the interface and put it to normal access port like others but result is same. has anyone faced this issue. Please advice. Regards, Azeem
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HI There, how to prevent network from port scan attack internally or externally?? well i have applied most of the security features but still i am one step behind.. Please anyone help in this for applying best security practices for securing the network. Regards, Azeem
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